Google outage pushed traffic through Russia, China and Nigeria

Google suffered a brief outage and slowdown on Monday, with some of its traffic being rerouted through networks in Russia, China and Nigeria.

Incorrect routing instructions sent some of the search giant's traffic to Russian network operator TransTelekom, China Telecom and Nigerian provider MainOne between 1:00 p.m. and 2:23 p.m. PT, according to ThousandEyes, an internet research group.

"This incident at a minimum caused a massive denial of service to G Suite and Google Search," Ameet Naik, ThousandEyes' technical marketing manager, wrote in a blog post. "However, this also put valuable Google traffic in the hands of ISPs in countries with a long history of Internet surveillance.

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MainOne seems to have been at the heart of the problem, according to an Ars Technica report. The Lagos-based provider apparently conducted an update that incorrectly declared its that system was the proper path for millions of Google IP addresses.

The problematic update caused a chain reaction in which China Telecom and Russia's TransTelekom to improperly accepted the route

Nigeria's MainOne said Tuesday the outage was caused by "an error during a planned network upgrade."

We have investigated the advertisement of @Google prefixes through one of our upstream partners. This was an error during a planned network upgrade due to a misconfiguration on our BGP filters. The error was corrected within 74mins & processes put in place to avoid reoccurrence